Gentoo Archives: gentoo-mips

From: "J. Scott Kasten" <jscottkasten@×××××.com>
To: gentoo-mips@l.g.o
Subject: [gentoo-mips] JFS on non-intel [ Was O2 Sound and Misc Stuff]
Date: Fri, 09 Feb 2007 18:56:49
In Reply to: Re: [gentoo-mips] O2 Sound and Misc Stuff. [Was LiveCD RC6] by Alex Deucher
1 I'm interested in your data point. Do you happen to remember about which
2 kernel that was? There was some general badness that affected multiple
3 file systems in late 2.6.13 on into 2.6.14 or so in the way that you
4 describe. Not sure they ever really knew what the smoking gun was.
6 Used JFS for about 6 months with the gentoo mips 2.6.13 kernel and did
7 not find any issues. Briefly with Sparc32, but don't remember
8 which kernel. On Intel, I've done extensive regressions with it.
10 If anyone is interested, I have a thrasher script written specifically for
11 this purpose. It's a multi-threaded ruby script that creates a randomized
12 directory tree, with random files, containing random data. A CRC check is
13 kept on each file. The threads run in parallel rewriting data in the
14 middle of files, truncating, resizing, creating voids, forcing the file
15 system into writing multiple extents, exercising tail packing, unlinking
16 files with open handles, etc...
18 -S-
20 On Fri, 9 Feb 2007, Alex Deucher wrote:
22 > On 2/9/07, J. Scott Kasten <jscottkasten@×××××.com> wrote:
24 > Be careful. I tried to use JFS on some sparc boxes, and ran into some
25 > subtle bugs that no one seemed to be able to solve that led to
26 > filesystem corruption: things like disappearing/reappearing files and
27 > directories. On the other hand I've had no problems with JFS on AMD64
28 > or x86.
29 >
30 > Alex
31 >
32 --
33 gentoo-mips@g.o mailing list


Subject Author
Re: [gentoo-mips] JFS on non-intel [ Was O2 Sound and Misc Stuff] Alex Deucher <alexdeucher@×××××.com>